- GRACE have created a custom built allow frame housing a 1300AH Lion battery (how would you replace them!?) frame mounted speed controller utilising a 1300W motor. They say it’s a motorbike and are asking for about €5877 for this puppy. Nice idea, but way too expensive for what is really a custom built mountain bike with a overly large motor. Range is only 30-50km range and a top speed of 45kph (street version is limited)